Here are several options for describing the WordPress post_tag “改善抵抗力” (Improve Immunity) in Traditional Chinese, ranging in length and focus:

**Option 1: Concise and Clear**

* **Description:** 提升身體免疫力，增强對疾病的抵抗。 (Ti2 sheng1 shen1 ti3 mian3 yi4 li4, zeng1 qiang2 dui4 ji2 bing4 de5 di3 kang4.) – Boost physical immunity and strengthen resistance to illness.

**Option 2: Slightly More Informative**

* **Description:** 關於如何透過飲食、生活習慣等方式，改善抵抗力，增進身體健康的文章分類。 (Guan1 yu2 ru2 he2 tou2 guo4 yin3 shi2, sheng1 huo2 xi2 guan2 deng3 fang1 shi4, gai3 shan4 di3 kang4 li4, zeng1 jin4 shen1 ti3 jian4 kang1 de5 wen2 zhang1 fen1 lei4.) – Category for articles on how to improve immunity and enhance bodily health through diet, lifestyle habits, and other methods.

**Option 3: Focusing on Prevention**

* **Description:** 探索有效預防疾病的方法，增強免疫系統功能，打造更強健的身體。 (Tan4 suo3 you3 xiao4 yu4 fang2 ji2 bing4 de5 fang1 fa3, zeng1 qiang2 mian3 yi4 xi4 tong3 gong1 neng2, da3 zao4 geng4 qiang2 jian4 de5 shen1 ti3.) – Exploring effective methods to prevent illness, boost immune system function, and build a stronger, healthier body.

**Option 4: Including Keywords for SEO**

* **Description:** 改善抵抗力攻略，提升免疫力，增强防禦力，預防感冒、流感等疾病。 學習飲食、運動、睡眠等方法，打造健康生活。 (Gai3 shan4 di3 kang4 li4 gong1 lue4, ti2 sheng1 mian3 yi4 li4, zeng1 qiang2 fang2 yu4 li4, yu4 fang2 gan3 mao4, liu2 gan3 deng3 ji2 bing4. Xue2 xi2 yin3 shi2, yun4 dong4, shui4 mian2 deng3 fang1 fa3, da3 zao4 jian4 kang1 sheng1 huo2.) – Strategies for improving immunity, enhancing defense, and preventing colds, flu, and other illnesses. Learn about diet, exercise, sleep, and other methods to create a healthy lifestyle.

**Which Option to Choose:**

* **Consider your audience:** If you’re targeting a general audience, options 1 or 2 are good.
* **Optimize for search:** If you want to improve SEO, Option 4 is a good choice because it includes more keywords related to the topic.
* **Focus on content:** If your content primarily focuses on preventative measures, opt for Option 3.

Remember to update the tag’s description within your WordPress admin panel under “Tags” or when you add your tag. Also, ensure that the description is relevant to the type of content tagged and easy to understand for your readers. Good luck!